Transcript PLANTS - Home - Darlington Middle School

PLANTS
6-2.3
How they absorb and circulate fluids
How they reproduce
Method of seed production
Type of seed leaf
Plant Kingdom
Vascular
Nonvascular
Mosses, Liverworts
Seed producing
Spore Producing
Ferns,
Horsetails
Flowering
Cone Bearing
Pine, spruce,
fir trees
Monocot
Rice, grass,
lilies, tulips
Dicot
Roses, oak &
maple trees
Plant Kingdom
Vascular or Nonvascular
How they absorb and circulate fluids –
Vascular or Nonvascular?
 Does the plant have roots, stems, and leaves?
 Is the plant very small in size?
 Does it have a way to circulate water and food from one place to
another within the plant?
 Does it obtain its nutrients directly from the environment ?
The answers to these questions will help you
decide if the plant is either Vascular or
Nonvascular.
Vascular Plants
 The largest group of plants
 Have true roots, stems, & leaves
 Have a transportation system for nutrients:
 xylem transports water & minerals up from the roots
 phloem transports food down from the leaves
Vascular Plants
EXAMPLES:
 With hard, woody stems- trees, bushes –
 grow very tall
 With soft, herbaceous stems – grasses, dandelions
& tomato plants
Nonvascular Plants
 Usually very small in size
 No true roots, stems, leaves
 No transportation system for nutrients,
absorb them directly from the environment
EXAMPLES:
Liverwort, Hornwort, & Mosses
Seed or Spore-Producing
How they reproduce –
Plant Kingdom
Vascular
Nonvascular
Mosses, Liverworts
Seed producing
Spore Producing
Ferns,
Horsetails
Flowering
Cone Bearing
Pine, spruce,
fir trees
Monocot
Rice, grass,
lilies, tulips
Dicot
Roses, oak &
maple trees
Seed-Producing Plants
 Reproduce through seeds
 Seeds contain the plant embryo (beginnings new plant)
 Seeds also have stored food (cotyledons)
 Two major groups are cone-bearing and flowering
Spore-Producing Plants
 Produce spores for reproduction instead of seeds.
 Spores are much smaller than seeds.
 Almost all flowerless plants produce spores.
 Examples include mosses and ferns.
http://www.youtube.com/watch?v=ALGDLzWcvnU
Flowering or Cone-Bearing Plants
Method of seed production –
Flowering Plants
 Seeds grow inside an ovary, which is embedded in a flower.
 The flower becomes a fruit containing the seeds.
 Examples include most trees, shrubs, vines, flowers, fruits, vegetables,
and legumes.
Cone-Bearing Plants
 Most cone-bearing plants are evergreen with needle-like leaves.
 Conifers never have flowers but produce seeds in cones.
 Examples include pine, spruce, juniper, redwood, and cedar trees.
Dicot or Monocot
Type of seed leaf –
Monocot
 A seed with one food storage area is called a monocotyledon, or monocot.
 Flowers have either three petals or multiples of three.
 Leaves are long and slender with veins that are parallel to each other.
 The vascular tube structures are usually scattered randomly throughout
the stem.
 Examples include grass, corn, rice, lilies, and tulips.
Dicot
 A seed with two food storage areas is called a dicot or dicotyledon.
 Flowers four or five petals or multiples of these numbers.
 The leaves are usually wide with branching veins.
 The vascular tube structures are set in circular bundles.
 Examples include roses, dandelions, maple, and oak trees.